Abstract Oil leak from vehicles is one of the most common pollution types of the road. The spilled oil could be retained on the surface and spread in the air voids of the road, which results in a decrease in the friction coefficient of the road, affects driving safety, and causes damage to pavement materials over time. Photocatalytic degradation through nano-TiO2 is a safe, long-lasting, and sustainable technology among the many methods for treating oil contamination on road surfaces. In this study, the nano-TiO2 photocatalytic degradation effect of road surface oil pollution was evaluated through the lab experiment. First, a glass dish was used as a substrate to determine the basic working condition of the test; then, a test method considering the impact of different oil erosion degrees was proposed to eliminate the effect of oil erosion on asphalt pavement and leakage on cement pavement, which led to the development of a lab test method for the nano-TiO2 photocatalytic degradation effect of oil pollution on different road surfaces.

中文翻译：

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纳米TiO2光催化降解路面油污效果的室内试验

摘要 车辆漏油是道路最常见的污染类型之一。溢出的油类会滞留在路面上并扩散到路面的空隙中，导致路面的摩擦系数降低，影响行车安全，久而久之会对路面材料造成损坏。在处理路面油污的众多方法中，通过纳米二氧化钛进行光催化降解是一种安全、持久和可持续的技术。本研究通过室内实验评价纳米TiO2光催化降解路面油污的效果。首先，以玻璃盘为基材，确定试验的基本工作条件；然后，